Kefbigebatqb-lining



'A. J. NUTTER-. REFRIGERATOR LINING.

APPLICATION FILED MAR- Z[), 1908- I 907,276. Patented Dec. 22, 1908.

,J, L R I 'ALONZO JAMES N'UTTER, OF KANSAS CITY, MISSOURIREFRIGEBATOR-LINING.

Application filed March 20, 1908.

Specification of Letters Patent.

Patented Dec. 22, 1908.

Serial no. 422,280.

To all whom it may concern:

Be it known that I, ALoNzo JAMES NUT- TER, a citizen of the UnitedStates, residing at ,Kansas City, in. the county of Jackson and State-fMissouri, haveinvented certain new and useful ImprovementsinRefrigerator-Linings; and I do hereby declare the.

- following to be a full, clear, and exact andwhich at the same time ishighly ornadescription of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My improvements relate to refrigerator linings whose surfaces line theinterior of food containing and other compartments of refrigerators. I 1

Theobject of my improved refrigerator lining is to furn sh a liningwhich is strong, able to withstand all extremes of temperature, insectand vermin proof, able to resist the action 0f-water, which is anon-conductor of heat, Whichis economical to produce mental.

I produce such a manner:

Figure .1 is a view in section perpendicular to the surface showing inexaggerated relation the insulating board and coating. Fig. 2 is a Viewpartly in plan and partly with the coating broken away showing at onepoint the coating and at another point the base upon which the coatingis carried.

lining in the following As the basis for my lining I take asbestos board10 which'is a composition made of asbestos fiber and cement and produceon one side of said board a smooth, water proof and highly polishedsurface. Th s surface may be produced by means of a baking japanrepresented at 11 but of course exaggerated or by means of a bakingenamel as hereinafter described.- f

Where a baking japan is used a filler is first applied to the surface ofthe asbestos board so as to fill the pores of the surface of theasbestos board and so as to receive the japan; After the filler has beenapplied the asbestos board is painted with the liquid japan in theordinarymanner. After the japan has dried the asbestos board is baked ina japanning oven until the japanning is completed leaving a beautiful,smooth and water proof surface on the asbestos board.

When it is desired to produce a hard and more enduring finish on thesurface of the asbestos board, a glass like enamel is applied to' thesurface of the asbestos board and afterwards fused thereon by theapplication of great heat in the enameling furnace. I do not limitmyself to any particular composition of enamel to be used but any of theordinary enamels applicable in enameling metals or pottery areapplicable to enameling asbestos board. The enamel is first applied inthe rough state by painting, brushing or otherwise applying same and isthen fused on to the surface of the asbestos board by the application ofheat. The enamels used comprise compositions containing 'silicates ofpotassium, sodium, calcium, magnesium and lead, borates and the otherelements present in ordinary glass like enamels. Their composition maybe varied from time to'time as an enamel of high or low fusing point iswanted. This glass like enamel on fusing adheres verv tenaciously to thesurface of the asbestos board as-the composition of the enamelapproximates greatly the composition of asbestos board, the asbestosboard being composed of asbestos and cement consists largely ofsilicates having a composition approximate to that of the composition ofthe enamel so that the co-efiicient' ofeX- pansion of the enamel and ofthe asbestos board are very near together so that the enamel adheresvery tenaciously to the asbestos board being practically fused into onesolid'piece therewith, so that no changes of temperature are able toeffect the union of the enamel and the asbestos board. This enamel formsa glass like surface on the surface of the board rendering same waterWhat I claim is: 4. In a, refrigerator lining, the combina- 10 1. In alining, the combination of an tion of a composition of asbestos fiberand enamel and asbestos board. 4 cement and an enamel baked thereon2.'In' i7 lining, the combination of as- In testimony whereof I aflix mysignature 5 bestos 'boai glfancl a japanning enamel baked in presence oftwo Witnesses.

thereon. ALONZO JAMES NUT-TIER. 3. In "a lining, the combination of a-Witnesses: composition of asbestos ancl cement andan S. G. LOEWENTHAL,

enamel. EMMA M. WILLOCK.

